From "abandoned well" to "XP-SWMM" a Microsoft software package used in an urban Florida county's sewer modeling projects, independent consulting engineer Adrien provides definitions for 4000 terms and phrases related to water conveyance, computational hydraulics, and hydrologic modeling. Also included are 150 line drawings illustrating various concepts or processes. An additional, longer list of terms is included without definitions, but with reference to works in which definitions may be found (no page numbers are designated however).